drivers/of/unittest-data/tests-address.dtsi

Source file repositories/reference/linux-study-clean/drivers/of/unittest-data/tests-address.dtsi

File Facts

System
Linux kernel
Corpus path
drivers/of/unittest-data/tests-address.dtsi
Extension
.dtsi
Size
4468 bytes
Lines
159
Domain
Driver Families
Bucket
drivers/of
Inferred role
Driver Families: configuration, schema, or hardware description
Status
atlas-only

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0

/ {
	#address-cells = <1>;
	#size-cells = <1>;

	testcase-data {
		#address-cells = <1>;
		#size-cells = <1>;
		ranges;

		address-tests {
			#address-cells = <1>;
			#size-cells = <1>;
			/* ranges here is to make sure we don't use it for
			 * dma-ranges translation */
			ranges = <0x70000000 0x70000000 0x50000000>,
				 <0x00000000 0xd0000000 0x20000000>;
			dma-ranges = <0x0 0x20000000 0x40000000>;

			device@70000000 {
				reg = <0x70000000 0x1000>;
			};

			bus@80000000 {
				#address-cells = <2>;
				#size-cells = <2>;
				ranges = <0x0 0x0 0x80000000 0x0 0x100000>;
				dma-ranges = <0x1 0x0 0x0 0x20 0x0>;

				device@1000 {
					reg = <0x0 0x1000 0x0 0x1000>;
				};
			};

			pci@90000000 {
				device_type = "pci";
				#address-cells = <3>;
				#size-cells = <2>;
				reg = <0x90000000 0x1000>;
				ranges = <0x42000000 0x0 0x40000000 0x40000000 0x0 0x10000000>;
				dma-ranges = <0x42000000 0x0 0x80000000 0x00000000 0x0 0x10000000>,
					     <0x42000000 0x0 0xc0000000 0x20000000 0x0 0x10000000>;
			};

			bus@a0000000 {
				#address-cells = <3>;
				#size-cells = <2>;
				ranges = <0xf00baa 0x0 0x0 0xa0000000 0x0 0x100000>,
					 <0xf00bee 0x1 0x0 0xb0000000 0x0 0x200000>;
			};

		};

		address-tests2 {
			#address-cells = <2>;
			#size-cells = <1>;

			ranges = <0x10000000 0x01000000 0xa0000000 0x01000000>,
				 <0x10000000 0x02000000 0xb0000000 0x01000000>,
				 <0x20000000 0x01000000 0xc0000000 0x01000000>,
				 <0x20000000 0x02000000 0xd0000000 0x01000000>,
				 <0x00000000 0xd1000000 0xd1000000 0x01000000>,
				 <0x00000000 0xe8000000 0xe8000000 0x07f00000>,
				 <0x00000000 0xefff0000 0xefff0000 0x00010000>;

			bus-2cell@10000000 {
				#address-cells = <2>;
				#size-cells = <1>;
				ranges = <0x100000 0x10000 0x10000000 0x1a00000 0x10000>,

Annotation

Implementation Notes